// Expose filesystem fullness.
func (c *filesystemCollector) GetStats() (stats []filesystemStats, err error) {
var mntbuf *C.struct_statfs
count := C.getmntinfo(&mntbuf, C.MNT_NOWAIT)
if count == 0 {
return nil, errors.New("getmntinfo() failed")
}
mnt := (*[1 << 30]C.struct_statfs)(unsafe.Pointer(mntbuf))
stats = []filesystemStats{}
for i := 0; i < int(count); i++ {
name := C.GoString(&mnt[i].f_mntonname[0])
if c.ignoredMountPointsPattern.MatchString(name) {
log.Debugf("Ignoring mount point: %s", name)
continue
}
labelValues := []string{name}
stats = append(stats, filesystemStats{
labelValues: labelValues,
size: float64(mnt[i].f_blocks) * float64(mnt[i].f_bsize),
free: float64(mnt[i].f_bfree) * float64(mnt[i].f_bsize),
avail: float64(mnt[i].f_bavail) * float64(mnt[i].f_bsize),
files: float64(mnt[i].f_files),
filesFree: float64(mnt[i].f_ffree),
})
}
return stats, nil
}
// Expose filesystem fullness.
func (c *filesystemCollector) Update(ch chan<- prometheus.Metric) (err error) {
var mntbuf *C.struct_statfs
count := C.getmntinfo(&mntbuf, C.MNT_NOWAIT)
if count == 0 {
return errors.New("getmntinfo() failed")
}
mnt := (*[1 << 30]C.struct_statfs)(unsafe.Pointer(mntbuf))
for i := 0; i < int(count); i++ {
name := C.GoString(&mnt[i].f_mntonname[0])
if c.ignoredMountPointsPattern.MatchString(name) {
log.Debugf("Ignoring mount point: %s", name)
continue
}
c.size.WithLabelValues(name).Set(float64(mnt[i].f_blocks) * float64(mnt[i].f_bsize))
c.free.WithLabelValues(name).Set(float64(mnt[i].f_bfree) * float64(mnt[i].f_bsize))
c.avail.WithLabelValues(name).Set(float64(mnt[i].f_bavail) * float64(mnt[i].f_bsize))
c.files.WithLabelValues(name).Set(float64(mnt[i].f_files))
c.filesFree.WithLabelValues(name).Set(float64(mnt[i].f_ffree))
}
c.size.Collect(ch)
c.free.Collect(ch)
c.avail.Collect(ch)
c.files.Collect(ch)
c.filesFree.Collect(ch)
return err
}
// Expose filesystem fullness.
func (c *filesystemCollector) GetStats() (stats []filesystemStats, err error) {
var mntbuf *C.struct_statfs
count := C.getmntinfo(&mntbuf, C.MNT_NOWAIT)
if count == 0 {
return nil, errors.New("getmntinfo() failed")
}
mnt := (*[1 << 20]C.struct_statfs)(unsafe.Pointer(mntbuf))
stats = []filesystemStats{}
for i := 0; i < int(count); i++ {
mountpoint := C.GoString(&mnt[i].f_mntonname[0])
if c.ignoredMountPointsPattern.MatchString(mountpoint) {
log.Debugf("Ignoring mount point: %s", mountpoint)
continue
}
device := C.GoString(&mnt[i].f_mntfromname[0])
fstype := C.GoString(&mnt[i].f_fstypename[0])
if c.ignoredFSTypesPattern.MatchString(fstype) {
log.Debugf("Ignoring fs type: %s", fstype)
continue
}
var ro float64
if (mnt[i].f_flags & MNT_RDONLY) != 0 {
ro = 1
}
stats = append(stats, filesystemStats{
labels: filesystemLabels{
device: device,
mountPoint: mountpoint,
fsType: fstype,
},
size: float64(mnt[i].f_blocks) * float64(mnt[i].f_bsize),
free: float64(mnt[i].f_bfree) * float64(mnt[i].f_bsize),
avail: float64(mnt[i].f_bavail) * float64(mnt[i].f_bsize),
files: float64(mnt[i].f_files),
filesFree: float64(mnt[i].f_ffree),
ro: ro,
})
}
return stats, nil
}
// Parse /proc/self/mountinfo because comparing Dev and ino does not work from bind mounts
func parseMountTable() ([]*MountInfo, error) {
var rawEntries *C.struct_statfs
count := int(C.getmntinfo(&rawEntries, C.MNT_WAIT))
if count == 0 {
return nil, fmt.Errorf("Failed to call getmntinfo")
}
var entries []C.struct_statfs
header := (*reflect.SliceHeader)(unsafe.Pointer(&entries))
header.Cap = count
header.Len = count
header.Data = uintptr(unsafe.Pointer(rawEntries))
var out []*MountInfo
for _, entry := range entries {
var mountinfo MountInfo
mountinfo.Mountpoint = C.GoString(&entry.f_mntonname[0])
out = append(out, &mountinfo)
}
return out, nil
}
